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ivolga24 [154]
3 years ago
9

Simplify 9(r-s) -4(r -s)​

Mathematics
2 answers:
finlep [7]3 years ago
8 0

Answer:

Step-by-step explanation:

9r-9s-4r-4s

9r-4r-9s-4s

5r-13s

Lana71 [14]3 years ago
4 0

Answer:

5r - 5s

Step-by-step explanation:

Distribute

9(r - s) = 9r - 9s

-4(r - s) = -4r + 4s

9r - 9s - 4r + 4s

9r - 4r - 9s + 4s

5r - 5s

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(-7/8+8/7)+a=0 what is the value of a
Aleonysh [2.5K]

Answer: -15/56

Step-by-step explanation:

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3 years ago
How long does it take him to swim 50 meters ?
Brilliant_brown [7]

Answer:

31.25

Step-by-step explanation:

3 0
4 years ago
Two fifth graders solved 400,000 divided by 800. Carter said the answer is 500, while Kim said the answer is 5,000.
mestny [16]

Answer:

a. Carter is correct. (See explanation).

b. The quotient is 500 (The quotient of 400,000 divided by 800 and the quotient of  is 4,000,000 divided by 8,000 are equal).

Step-by-step explanation:

a. Carter is correct.

The dividend 400,000  and the divisor 800 have two zeros in common, so we can eliminate those zeros. Then:

4,000\div8

We know that the quotient obtained by dividing 40 and 8 is 5:

40\div8=5

 Since4,000 has two more zeros than 40, we must place two zeros in the quotient. Then:

=500

b. The dividend 4,000,000  and the divisor 8,000 have three zeros in common, so we can eliminate those zeros. Then:

4,000\div8

Notice that this is the same as the exercise "a". So the quotient will be the same.

Let's check. We know that:

40\div8=5

 Since4,000 has two more zeros than 40, we must place two zeros in the quotient. This is:

=500

3 0
3 years ago
Read 2 more answers
(3 3/4) divided by (-2 1/2)
GalinKa [24]

Answer:

-1 1/2

same as -1.5 but since you are dealing with fractions you should put it in fraction form unless told otherwise.

3 0
3 years ago
How do you solve 3/5×4 1/6?
Helen [10]
\frac{3}{5} × 4 \frac{1}{6}

First, convert 4\frac{1}{6} to an improper fraction. Use this rule: a \frac{b}{c} = \frac{ac+b}{c} / Your problem should look like: \frac{3}{5} × \frac{4x6+1}{6}
Second, simplify 4 × 6 to 24. / Your problem should look like: \frac{3}{5} × \frac{24+1}{6} 
Third, simplify 24 + 1 to 25. / Your problem should look like: \frac{3}{5} × \frac{25}{6}
Fourth, apply this rule: \frac{a}{b} × \frac{c}{d} = \frac{ac}{bd} / Your problem should look like: \frac{3x25}{5x6}
Fifth, simplify 3 × 25 to 75. / Your problem should look like: \frac{75}{5x6}
Sixth, simplify 5 × 6 to 30. / Your problem should look like: \frac{75}{30}
Seventh, simplify. / Your problem should look like: \frac{5}{2}
Eighth, convert to mixed fraction. / Your problem should look like: 2\frac{1}{2}

Answer: 2 \frac{1}{2}

5 0
4 years ago
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